Hub for a printing paper roll



FIG. 1 is an enlarged perspective view of a hub for a printing paper roll showing our new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is an enlarged partial cross-sectional view thereof taken along the line 4—4 of FIG. 2; and,

FIG. 5 is a cross sectional-view similar to FIG. 4 shown in a state in which a hub for a printing paper roll is fitted to an end of a printing paper roll.

The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design. 

We claim an ornamental design for a hub for a printing paper roll, as shown and described. 